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Table 5 Two-level Poisson regression analyses for associates with high risk behavior of patients with severe mental illness in rural households of Sichuan Province

From: Risk behavior in patients with severe mental disorders: a prospective study of 121,830 patients managed in rural households of western China

Variables Model1 Model2
Fixed effect Coefficient IRR(95% CI) Coefficient IRR(95% CI)
Regional Level
 NPP (per 100,000 pop.) 0.494* 1.638(1.001, 2.682)
 ANIPC(RMB Yuan) − 8.039* 0.000(0.000, 0.558)
 EP(%) − 2.055 0.128(0.000, 35.929)
 PCMLF(RMB Yuan) −0.001 0.999(0.998, 1.000)
 AFP 0.100 1.105(0.948, 1.288)
Individual Level:
Gender
 1 = male
 2 = female − 0.205** 0.814(0.787, 0.842) − 0.205** 0.814(0.787, 0.842)
Age
 1 = 15 to 24
 2 = 25 to 44 0.128** 1.137(1.053, 1.227) 0.128** 1.137(1.054, 1.227)
 3 = 45 to 59 −0.068 0.935(0.862, 1.013) −0.068 0.935(0.863, 1.013)
 4 = 60 −0.125** 0.882(0.812, 0.958) −0.125** 0.882(0.812, 0.959)
Nationality
 1 = Han
 2 = Minority −0.176 0.839(0.685, 1.028) −0.175 0.839(0.685, 1.028)
Family history of mental illness
 0 = no
 1 = yes 0.227** 1.254(1.170, 1.344) 0.227** 1.254(1.170, 1.345)
Marital status
 1 = married
 2 = unmarried 0.223** 1.250(1.206, 1.295) 0.223** 1.250(1.206, 1.295)
Economic status
 1 = poverty
 2 = non-poverty −0.494** 0.610(0.579, 0.642) −0.494** 0.610(0.579, 0.643)
Education level
 1 = illiteracy/semiliterate
 2 = elementary education and above −0.123** 0.884(0.855, 0.914) −0.123** 0.884(0.855, 0.914)
Diagnosis type
 1 = schizophrenia
 2 = schizoaffective disorder −0.044 0.957(0.845, 1.083) −0.045 0.956(0.845, 1.082)
 3 = paranoid psychosis 0.042 1.043(0.826, 1.316) 0.041 1.042(0.826, 1.315)
 4 = bipolar affective disorder −0.123* 0.885(0.802, 0.976) −0.123* 0.884(0.802, 0.975)
 5 = mental disorders due to epilepsy −0.262** 0.769(0.712, 0.831) −0.262** 0.769(0.712, 0.831)
 6 = mental retardation with mental disorders −1.096** 0.334(0.302, 0.370) −1.096** 0.334(0.302, 0.370)
Duration of illness
 1 = < 10 years
 2 = 10 to 19 years 0.118** 1.125(1.084, 1.168) 0.118** 1.125(1.084, 1.168)
 3 = 20 to 29 years 0.142** 1.153(1.104, 1.204) 0.142** 1.153(1.104, 1.204)
 4 = 30 years 0.152** 1.165(1.106, 1.226) 0.152** 1.165(1.107, 1.226)
Antipsychotic treatment
 0 = no
 1 = yes 0.039* 1.040(1.002, 1.079) 0.039* 1.040(1.003, 1.079)
Participation in 686 project
 0 = no
 1 = yes −0.266** 0.767(0.734, 0.801) − 0.266** 0.766(0.733, 0.801)
Random effect
 Level 2: Region \( \left({\sigma}_{u_0}^2\right) \) 0.502(0.168)** 0.417(0.165)*
  1. *P<0.05, **P<0.01
  2. Full description of regional variables as follows: annual net income of rural residents per capita (ANIPC), employment proportion of rural residents (EP%), and per capita minimal livelihood funds for rural residents under basic provision protection (PCMLF), number of psychiatric practitioners (including assistant psychiatric practitioners) per one hundred thousand people (NPP/100,000), the average number of follow-ups of patients in rural region (AFP)